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fix -wconversion-int and add minor comment

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This commit is contained in:
hathach
2022-11-04 16:14:35 +07:00
parent b554c2ed83
commit d2c9b8bcfb
2 changed files with 16 additions and 10 deletions
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18
src/portable/raspberrypi/rp2040/hcd_rp2040.c
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@@ -138,10 +138,10 @@ static void __tusb_irq_path_func(hw_handle_buff_status)(void)
_handle_buff_status_bit(bit, ep);
}
// Check interrupt endpoints
// Check "interrupt" (asynchronous) endpoints for both IN and OUT
for (uint i = 1; i <= USB_HOST_INTERRUPT_ENDPOINTS && remaining_buffers; i++)
{
// EPX is bit 0
// EPX is bit 0 & 1
// IEP1 IN is bit 2
// IEP1 OUT is bit 3
// IEP2 IN is bit 4
@@ -149,7 +149,8 @@ static void __tusb_irq_path_func(hw_handle_buff_status)(void)
// IEP3 IN is bit 6
// IEP3 OUT is bit 7
// etc
for(int j = 0; j < 2; j++){
for(uint j = 0; j < 2; j++)
{
bit = 1 << (i*2+j);
if (remaining_buffers & bit)
{
@@ -279,6 +280,8 @@ static struct hw_endpoint *_hw_endpoint_allocate(uint8_t transfer_type)
if (transfer_type != TUSB_XFER_CONTROL)
{
// Note: even though datasheet name these "Interrupt" endpoints. These are actually
// "Asynchronous" endpoints and can be used for other type such as: Bulk (ISO need confirmation)
ep = _next_free_interrupt_ep();
pico_info("Allocate %s ep %d\n", tu_edpt_type_str(transfer_type), ep->interrupt_num);
assert(ep);
@@ -344,11 +347,10 @@ static void _hw_endpoint_init(struct hw_endpoint *ep, uint8_t dev_addr, uint8_t
if (ep != &epx)
{
// Endpoint has its own addr_endp and interrupt bits to be setup!
// This is an interrupt endpoint
// so need to set up interrupt endpoint address control register with:
// device address
// endpoint number / direction
// preamble
// This is an interrupt/async endpoint. so need to set up ADDR_ENDP register with:
// - device address
// - endpoint number / direction
// - preamble
uint32_t reg = (uint32_t) (dev_addr | (num << USB_ADDR_ENDP1_ENDPOINT_LSB));
if (dir == TUSB_DIR_OUT)